CN106383347A - Vehicle driving early warning device in fog - Google Patents
Vehicle driving early warning device in fog Download PDFInfo
- Publication number
- CN106383347A CN106383347A CN201610916582.7A CN201610916582A CN106383347A CN 106383347 A CN106383347 A CN 106383347A CN 201610916582 A CN201610916582 A CN 201610916582A CN 106383347 A CN106383347 A CN 106383347A
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- vehicle
- early warning
- visibility
- objects ahead
- speed
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- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 14
- 230000010365 information processing Effects 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract 2
- 206010039203 Road traffic accident Diseases 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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- 239000003595 mist Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
- G01S13/865—Combination of radar systems with lidar systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention provides a vehicle driving early warning device in a fog installed on a vehicle. The device comprises a ranging radar sensor, a laser radar visibility meter, a GPS speed measuring module, and an integration control unit. The ranging radar sensor transmits a radio wave to a front detection area, and by using the received time delay of a target reflection signal and an emitting signal, a front target distance is measured. The laser radar visibility meter can be used to measure a current visibility indicator. The GPS speed measuring module obtains a vehicle absolute speed by using a real-time GPS signal. The integration control unit carries out processing and obtains the safety state of vehicle operation according to the information outputted by the ranging radar sensor, the laser radar visibility meter, and the GPS speed measuring module and carries out early alarming. According to the vehicle driving early warning device, the safety factor of driving of a driver in a fog can be improved, and traffic accidents caused by weather can be reduced.
Description
Technical field
The present invention relates to a kind of on-vehicle safety equipment, especially a kind of vehicle driving prior-warning device.
Background technology
The expressway construction of China has stepped into the period of high speed development, and incident be the continuous of vehicle accident
Increase, traffic safety problem is increasingly serious.Through statistics display, accounted for by the vehicle accident that diastrous weather directly or indirectly leads to
The 1/4 of accident total value, especially thick fog, have the title of height highway " killer ".The major obstacle of travelling in fog day is low visibility
With sighting distance illusion, under the severe weather conditions such as dense fog, motor vehicle driving personnel easily run into emergency case in the process of moving
And cause vehicle accident, or even cause the heaviness consequence such as local traffic paralysis, casualties.In order to solve greasy weather highway row
The problem of car safety, occurs in that much antifog, anti-safe practices such as knock into the back in recent years.
As patent application text《Guide type highway anti-fogging system》（Application No. 201010040025.6, publication number
For 101777268A, publication date is on July 14th, 2010）Disclosed in technology need highway on the way on install visibility
Survey meter and antifog early warning display screen etc., driver frequently observes display device to obtain information originally in the case of running at high speed
Body is just very dangerous；And real-time information warning can not be provided according to the real-time driving states of human pilot.
Patent application text《Expressway distance display method for running in foggy day》（Application No. 03136177.3, Publication No.
1458013, publication date is on November 26th, 2003）In technology be respectively to fill a collimated light beam in automobile rear both sides, in mist
During its driving, front truck points out spacing for rear car.This technology is only other people provides convenients, and can not voluntarily identify spacing, wants
Vehicle can drive safely, and that is accomplished by all of vehicle is installed, and if there are a car and does not fill, that other vehicle may
There is potential safety hazard.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide a kind of greasy weather vehicle driving early warning dress
Put, it is possible to increase the vehicle accident that the safety coefficient of greasy weather human pilot driving, minimizing lead to because of weather reason.The present invention adopts
Technical scheme be：
A kind of greasy weather vehicle driving prior-warning device, is installed on vehicle, including：Range radar sensor, laser radar visibility
Instrument, GPS speed measuring module, integrated control unit；
Described range radar sensor passes through forwards search coverage and launches radio wave, using the target reflection letter receiving
Latency measurement objects ahead distance number with transmission signal；
Described laser radar visibility meter is used for measuring current visibility index；
Described GPS speed measuring module utilizes real-time gps signal to obtain vehicle absolute velocity；
The letter that described integrated control unit exports according to range radar sensor, laser radar visibility meter, GPS speed measuring module
Breath, processes and obtains the safe condition that vehicle runs, and carry out early warning.
Specifically,
Integrated control unit comprises data acquisition module, data processing module, data base, early warning information processing module, early warning letter
Breath output module；
Data acquisition module is responsible for gathering range radar sensor, laser radar visibility meter, the letter of GPS speed measuring module output
Above- mentioned information, including objects ahead distance, visibility index, vehicle absolute velocity, is then conveyed to data processing module by breath；
Data processing module by continuous acquisition to two range radar information processings of range radar sensor become Current vehicle
With respect to the relative velocity of target, and the vehicle absolute velocity obtaining with GPS speed measuring module compare after judge that objects ahead is quiet
Only still move, and predict safety shut-down distance；
Limiting vehicle speed requirement under different geographical visibility conditions is stored in data base；
Data processing module requires according to limiting vehicle speed under the visibility conditions of current visibility index database, is contrasted
Analysis, analysis result is exported to early warning information processing module；
Early warning information processing module limits according to vehicle under vehicle absolute velocity, objects ahead distance, relative velocity, visibility conditions
Speed requires, and processes early warning information；If current vehicle speed is less than the corresponding speed limit of current visibility conditions and requires or objects ahead
Distance exceedes safety shut-down distance, then without early warning；If current vehicle speed is higher than the corresponding speed limit of current visibility conditions required
Or objects ahead distance less than safety shut-down distance, then carries out early warning information process；If objects ahead is static, currently
A speed pick-up absolute velocity, if objects ahead is motion, current vehicle speed takes relative velocity；Last early warning information processes mould
Early warning information is passed to early warning information output module by block；
Early warning information output module reminds human pilot to slow down.
Further, if absolute velocity is static equal to relative velocity so objects ahead, it is otherwise motion；As
Fruit objects ahead is motion, then predict safety shut-down distance according to relative velocity, if objects ahead is static, according to
Absolute velocity predicts safety shut-down distance.
Further, early warning information includes：Visibility scale, objects ahead distance, suggestion speed.
Further, early warning information output module includes early warning lighting fixture, early warning audio unit and early warning display screen.
It is an advantage of the current invention that：On the one hand, can in the case of the low visibilities such as greasy weather Real time identification front automobile
Or the distance of barrier and vehicle, if issuing warning information less than safety shut-down distance；On the other hand, by laser radar
Visibility meter identification visibility scale the corresponding Maximum speed limit of automatic decision, the vehicle itself finally arriving with Real-time Collection
Speed is compared, if there being hypervelocity to send warning information, being finally embodied as human pilot provides real-time early warning information, and has
Effect reduces road accident rate.
Brief description
Fig. 1 is the structure composition schematic diagram of the present invention.
Specific embodiment
With reference to concrete drawings and Examples, the invention will be further described.
The greasy weather vehicle driving prior-warning device that the present invention provides, as shown in figure 1, include：Range radar sensor, laser thunder
Danone view degree instrument, GPS speed measuring module, integrated control unit；This greasy weather vehicle driving prior-warning device may be installed the vehicle of needs
On；
Described range radar sensor passes through forwards search coverage and launches radio wave, using the target reflection letter receiving
Latency measurement objects ahead distance number with transmission signal；Barrier on objects ahead possibly other vehicles in front or road surface
Hinder thing；
Described laser radar visibility meter is used for measuring current visibility index；
Described GPS speed measuring module utilizes real-time gps signal to obtain vehicle absolute velocity；
The letter that described integrated control unit exports according to range radar sensor, laser radar visibility meter, GPS speed measuring module
Breath, processes and obtains the safe condition that vehicle runs, and carry out early warning.
Wherein integrated control unit comprises data acquisition module, data processing module, data base, early warning information process mould
Block, early warning information output module.
Data acquisition module be responsible for gather range radar sensor, laser radar visibility meter, GPS speed measuring module output
Above- mentioned information, including objects ahead distance, visibility index, vehicle absolute velocity, is then conveyed to data processing mould by information
Block,
Data processing module by continuous acquisition to two range radar information processings of range radar sensor become Current vehicle
With respect to the relative velocity of target, and the vehicle absolute velocity obtaining with GPS speed measuring module compare after judge that objects ahead is quiet
Only still move, and predict safety shut-down distance；If absolute velocity is static equal to relative velocity so objects ahead,
It is otherwise motion；If objects ahead is motion, safety shut-down distance is predicted according to relative velocity, if objects ahead
It is static, then predict safety shut-down distance according to absolute velocity；It is feasible according to speed prediction safety shut-down distance, because
For the vehicle, under each speed, braking distance, braking distance under 100 kilometers of speed per hours for the such as car can all be corresponded to
Typically 42-45 rice.Speed is made form with corresponding safety shut-down distance, tabling look-up can be according to speed prediction safety shut-down
Distance；
Limiting vehicle speed requirement under different geographical visibility conditions is stored in data base；
Data processing module requires according to limiting vehicle speed under the visibility conditions of current visibility index database, is contrasted
Analysis, analysis result is exported to early warning information processing module；
Early warning information processing module limits according to vehicle under vehicle absolute velocity, objects ahead distance, relative velocity, visibility conditions
Speed requires, and processes early warning information；If current vehicle speed is less than the corresponding speed limit of current visibility conditions and requires or objects ahead
Distance exceedes safety shut-down distance, then without early warning；If current vehicle speed is higher than the corresponding speed limit of current visibility conditions required
Or objects ahead distance less than safety shut-down distance, then carries out early warning information process；If objects ahead is static, currently
A speed pick-up absolute velocity, if objects ahead is motion, current vehicle speed takes relative velocity；Early warning information includes：Can see
Degree grade, objects ahead distance, suggestion speed；Early warning information is passed to early warning information output by last early warning information processing module
Module；
Early warning information output module includes early warning lighting fixture, early warning audio unit and early warning display screen, by light, sound and
Screen display prompts human pilot slows down.
This greasy weather vehicle driving prior-warning device is capable of identify that the distance apart from this car for the objects ahead in low visibility, and root
Road speed according to visibility scale and vehicle gives a warning information to human pilot, by early warning light, sound and screen
The mode of curtain display reminds human pilot, realizes reliable forewarning function, thus preventing from sending out in the case of greasy weather low visibility
The raw vehicle accident such as knock into the back, collide.
Claims (5)
1. a kind of greasy weather vehicle driving prior-warning device, is installed on vehicle it is characterised in that including：Range radar sensor, swash
Optical radar visibility meter, GPS speed measuring module, integrated control unit；
Described range radar sensor passes through forwards search coverage and launches radio wave, using the target reflection letter receiving
Latency measurement objects ahead distance number with transmission signal；
Described laser radar visibility meter is used for measuring current visibility index；
Described GPS speed measuring module utilizes real-time gps signal to obtain vehicle absolute velocity；
The letter that described integrated control unit exports according to range radar sensor, laser radar visibility meter, GPS speed measuring module
Breath, processes and obtains the safe condition that vehicle runs, and carry out early warning.
2. greasy weather vehicle driving prior-warning device as claimed in claim 1, be installed on vehicle it is characterised in that
Integrated control unit comprises data acquisition module, data processing module, data base, early warning information processing module, early warning letter
Breath output module；
Data acquisition module is responsible for gathering range radar sensor, laser radar visibility meter, the letter of GPS speed measuring module output
Above- mentioned information, including objects ahead distance, visibility index, vehicle absolute velocity, is then conveyed to data processing module by breath；
Data processing module by continuous acquisition to two range radar information processings of range radar sensor become Current vehicle
With respect to the relative velocity of target, and the vehicle absolute velocity obtaining with GPS speed measuring module compare after judge that objects ahead is quiet
Only still move, and predict safety shut-down distance；
Limiting vehicle speed requirement under different geographical visibility conditions is stored in data base；
Data processing module requires according to limiting vehicle speed under the visibility conditions of current visibility index database, is contrasted
Analysis, analysis result is exported to early warning information processing module；
Early warning information processing module limits according to vehicle under vehicle absolute velocity, objects ahead distance, relative velocity, visibility conditions
Speed requires, and processes early warning information；If current vehicle speed is less than the corresponding speed limit of current visibility conditions and requires or objects ahead
Distance exceedes safety shut-down distance, then without early warning；If current vehicle speed is higher than the corresponding speed limit of current visibility conditions required
Or objects ahead distance less than safety shut-down distance, then carries out early warning information process；If objects ahead is static, currently
A speed pick-up absolute velocity, if objects ahead is motion, current vehicle speed takes relative velocity；Last early warning information processes mould
Early warning information is passed to early warning information output module by block；
Early warning information output module reminds human pilot to slow down.
3. greasy weather vehicle driving prior-warning device as claimed in claim 2, be installed on vehicle it is characterised in that
If absolute velocity is static equal to relative velocity so objects ahead, it is otherwise motion；If objects ahead is
Motion, then safety shut-down distance is predicted according to relative velocity, if objects ahead is static, according to absolute velocity prediction
Safety shut-down distance.
4. greasy weather vehicle driving prior-warning device as claimed in claim 2, be installed on vehicle it is characterised in that
Early warning information includes：Visibility scale, objects ahead distance, suggestion speed.
5. greasy weather vehicle driving prior-warning device as claimed in claim 1, be installed on vehicle it is characterised in that
Early warning information output module includes early warning lighting fixture, early warning audio unit and early warning display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916582.7A CN106383347A (en) | 2016-10-20 | 2016-10-20 | Vehicle driving early warning device in fog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916582.7A CN106383347A (en) | 2016-10-20 | 2016-10-20 | Vehicle driving early warning device in fog |
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| Publication Number | Publication Date |
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| CN106383347A true CN106383347A (en) | 2017-02-08 |
Family
ID=57957997
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610916582.7A Pending CN106383347A (en) | 2016-10-20 | 2016-10-20 | Vehicle driving early warning device in fog |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108564820A (en) * | 2018-05-31 | 2018-09-21 | 浙江大学宁波理工学院 | The early warning system and method for early warning of zebra stripes |
| CN108806330A (en) * | 2018-05-31 | 2018-11-13 | 浙江大学宁波理工学院 | The driving early warning system and method for early warning of zebra stripes |
| CN109696171A (en) * | 2019-01-11 | 2019-04-30 | 天津科技大学 | On-vehicle navigation apparatus based on infrared ray and ultrasonic wave |
| CN111022123A (en) * | 2019-12-23 | 2020-04-17 | 长安大学 | A kind of anti-scratch early warning device and method for vehicles in tunnel |
| CN111882871A (en) * | 2020-07-09 | 2020-11-03 | 山西省交通科技研发有限公司 | Highway safety monitoring system |
| CN113386791A (en) * | 2021-06-15 | 2021-09-14 | 长安大学 | Danger avoiding system based on unmanned transport vehicle train in heavy fog weather |
| CN115331480A (en) * | 2021-05-10 | 2022-11-11 | 北京万集科技股份有限公司 | A vehicle early warning method, device and computing device |
| CN115416571A (en) * | 2022-08-22 | 2022-12-02 | 浙江吉利控股集团有限公司 | Vehicle monitoring method, vehicle monitoring system and vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108564820A (en) * | 2018-05-31 | 2018-09-21 | 浙江大学宁波理工学院 | The early warning system and method for early warning of zebra stripes |
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| CN111022123A (en) * | 2019-12-23 | 2020-04-17 | 长安大学 | A kind of anti-scratch early warning device and method for vehicles in tunnel |
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| CN115331480A (en) * | 2021-05-10 | 2022-11-11 | 北京万集科技股份有限公司 | A vehicle early warning method, device and computing device |
| CN113386791A (en) * | 2021-06-15 | 2021-09-14 | 长安大学 | Danger avoiding system based on unmanned transport vehicle train in heavy fog weather |
| CN115416571A (en) * | 2022-08-22 | 2022-12-02 | 浙江吉利控股集团有限公司 | Vehicle monitoring method, vehicle monitoring system and vehicle |
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Application publication date: 20170208 |
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